Coil stripper



Patented Nov. 23, 1937 COIL STRIPPER William H. Blount, West Brookfielcl, Mass, as-

signor to Sleeper & Hartley, Inc., Worcester, Mass., a corporation of Massachusetts 7 Application November 4, 1935, Serial No. 48,074

2 Claims.

This invention relates to an attachment for a coiling machine particularly, but for any machine in which a wire is formed into any particular shape, and the principal object is to provide a simple compact and effective means for stripping the coil or other article made by that machine off the arbor on which it is formed. Another object is to provide means whereby the stripping mechanism will be operated from a rotating part of the machine and the parts will be restored to normal active position automatically after the stripping has taken place. A further object is to provide mechanism located in a rotating tube for performing the operation of stripping and keeping the parts for returning the arbor from turning duringthe rotating operation.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawing, in which Fig. 1 is an elevation partly in section of a preferred embodiment of the invention shown attached to a coiling machine; 1

Fig. 2 is a similar view of the lower part of the stripping mechanism showing the coil stripped from the arbor; 1

Fig. 3 is an elevation in the direction of the arrow 3 in Fig. 1 showing the cam for operating the stripper;

Fig; 4 is a sectional view on the line 4-4 of Fig. 1, and 1 Fig. 5 is a sectional view similar to part of Fig. 1 showing the parts in the stripping position.

This invention is shown as an attachment to a coiling machine, very little of the coiling machine being shown, but the frame I9 is provided with a bracket ID on which is placed a second bracket II to which is pivoted a lever l2. One end of this lever has an operating rod l3 connected with a link l4 which has a projection [5 preferably. This link is pivoted on a bracket [6 on the frame [9. The link is adapted to be operated by a rotating cam I! on a shaft l8 which is rotated continuously when the machine is being operated.

The bracket 19 is mounted on the frame l9 of theymachine and this bracket carries the usual lever 20 operated by suitable mechanism through a link 2|. The lever 20 carries a yoke 22 operating a spool 23 adjustably fixed on screw threads on a tube 24. Nuts 25 hold it in adjusted position and, as usual, the operation of the link raises and lowers'this tube whenever necessary.

On the frame I9 is located a guide 26 for the tube 24 and a bearing 21 for a gear 28 which is operated in the usual way by the machine and which meshes with a long pinion 29 integral with the tube 24. Thus the rotation of the gear 28 rotates the tube 24 irrespective of the position of the tube vertically. All the parts in the tube 24 rotate except the arbor.

The parts just described are old and constitute a part of the machine now on the market.

On the free end of the lever I2 is ayoke operating a spool 30. This spool has a downwardly extending skirt 3| with a longitudinal slot 32. Inside the skirt is a hollow cylinder 33 which has a radial pin 34 extending into the slot 32 to keep this cylinder 33 from turning relative to the spool 30.

' An arbor 35 passes down through the spool and cylinder 33 clear to the bottom of the mechanism. On the arbor near the top is pinned a disc 36 in the bottom of the cylinder 33. Below this disc is a head 31 on a hollow spindle 38 which has a longitudinal passage or course to receive the arbor. The spindle 38 is screwed tight to the cylinder .33. Resting on the disc 36 and also engaging the top of a cylindrical pas-' sage in the cylinder 331s a spring 39. This spring tends at all times to hold down the spindle 38 but yields, as shown in Fig. 5, to allow the stripping action to take place. This spindle is threaded and a nut 40 is mounted on it engaging the bottom of the cylinder 33, but the skirt 3| is free to move up and down with respect thereto.

The arbor 35 projects down through a bushing 4| on the cylinder 24. The spindle 38 projects down into this part of the mechanism and has screwed to the bottom a head 42 which is shown as having a pin 43 for coiling the wire. So it will be seen that the arbor projects down through the bottom of this head 42 when the machine is operating as shown in Fig. 1. Every time the cam l'I engages the projection I5, the rod l3 will be drawn down and the arbor 35 will be drawn up to the position shown in Fig. 2, thus dislodging the work 44. This is possible on account of the spring 39. After the cam I'l passes beyond the projection IS, the spring 39 will restore the arbor 35 to the position shown in Fig. 1.

This constitutes a simple and compact means for adjusting the work and restoring the coiling arbor to operative position. The parts are capable of the necessary adjustment and are all tight to prevent the admission of dust.

Having thus described my invention and. the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than 2. In a device for stripping the work from an arbor, the combination with the arbor, of a ho]- low rotary spindle surrounding the arbor, a cylinder surrounding the spindle, means connected with the end of the arbor for forming an article from wire or the like, means for moving the arbor longitudinally with respect to the spindle for dislodging said article, and a spring in the cylinder adapted to be compressed by said motion of the arbor and to restore thearbor to active condition. 1

WILLIAM H. BLOUNT. 

